nndeploy::device::Event Class Reference

事件类 More...

#include <device.h>

Inheritance diagram for nndeploy::device::Event:

Collaboration diagram for nndeploy::device::Event:

Public Member Functions
template<typename T >
T *	as ()
	类型转换模板函数 More...
	Event (Device *device)
	构造函数 More...
virtual Device *	getDevice () const
	获取关联设备 More...
virtual base::DeviceType	getDeviceType () const
	获取设备类型 More...
virtual void *	getNativeEvent ()
	获取原生事件对象 More...
virtual bool	queryDone ()
	查询事件是否已完成 More...
virtual base::Status	synchronize ()
	同步等待事件完成 More...
virtual	~Event ()
	析构函数 More...
Public Member Functions inherited from nndeploy::base::NonCopyable
	NonCopyable ()=default
	NonCopyable (const NonCopyable &)=delete
	NonCopyable (NonCopyable &&)=delete
NonCopyable &	operator= (const NonCopyable &)=delete
NonCopyable &	operator= (NonCopyable &&)=delete

Protected Attributes
Device *	device_
	关联的设备 More...

Detailed Description

事件类

用于流之间的同步和异步操作的完成状态查询

Definition at line 513 of file device.h.

Constructor & Destructor Documentation

Event()

nndeploy::device::Event::Event

(

Device *

device

)

构造函数

Parameters

device

关联的设备

~Event()

virtual nndeploy::device::Event::~Event ( )

virtual

析构函数

Member Function Documentation

as()

template<typename T >

T* nndeploy::device::Event::as ( )

inline

类型转换模板函数

Template Parameters

T

目标类型

Returns

T* 转换后的指针

Definition at line 592 of file device.h.

getDevice()

virtual Device* nndeploy::device::Event::getDevice ( ) const

virtual

获取关联设备

Returns

Device* 设备指针

getDeviceType()

virtual base::DeviceType nndeploy::device::Event::getDeviceType ( ) const

virtual

获取设备类型

Returns

base::DeviceType 设备类型

getNativeEvent()

virtual void* nndeploy::device::Event::getNativeEvent ( )

virtual

获取原生事件对象

Returns

void* 原生事件指针

queryDone()

virtual bool nndeploy::device::Event::queryDone ( )

virtual

查询事件是否已完成

非阻塞地检查事件是否已经完成执行。这个方法允许应用程序在不阻塞当前线程的情况下 检查事件状态。

示例:

Event *event = device->createEvent();
stream->recordEvent(event);
 
// 稍后检查事件是否完成
if (event->queryDone()) {
  // 事件已完成，可以安全地访问相关资源
}

Returns

bool 如果事件已完成返回true，否则返回false

synchronize()

virtual base::Status nndeploy::device::Event::synchronize ( )

virtual

同步等待事件完成

阻塞当前线程直到事件完成。这个方法用于确保在继续执行之前， 与事件相关的所有操作都已完成。

示例:

Event *event = device->createEvent();
stream->recordEvent(event);
 
// 等待事件完成
event->synchronize();
 
// 此时可以安全地访问相关资源

Returns

base::Status 操作状态，成功返回kStatusCodeOk

Member Data Documentation

device_

Device* nndeploy::device::Event::device_

protected

关联的设备

Definition at line 597 of file device.h.

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The documentation for this class was generated from the following file:

• /home/docs/checkouts/readthedocs.org/user_builds/nndeploy-zh/checkouts/stable/framework/include/nndeploy/device/device.h